<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div>
  <input type="text" v-model="num" placeholder="请输入1-100之间的整数">
  <input type="button" value="猜一猜" @click="f()">
  <h3>结果:{{info}}</h3>
</div>

<script src="js/vue.min.js"></script>
<script>
    let x = parseInt(Math.random()*100)+1;
  let v = new Vue({
    el:"body>div",
    data:{
        info:"",num:""
    },
      methods:{
        f(){
            if (v.num>x){
                v.info="猜大了!";
            }else if(v.num<x){
                v.info="猜小了!";
            }else{
                v.info="恭喜你猜对了!";
            }
        }
      }
  })
</script>
</body>
</html>